diff --git a/lib/s3_inventory.rb b/lib/s3_inventory.rb
index 3f3735b2323..295e6cf7af8 100644
--- a/lib/s3_inventory.rb
+++ b/lib/s3_inventory.rb
@@ -63,7 +63,7 @@ class S3Inventory
 
             list_missing_post_uploads if type == "original"
 
-            uploads = (model == Upload) ? model.by_users.where("created_at < ?", inventory_date) : model
+            uploads = (model == Upload) ? model.by_users.where("updated_at < ?", inventory_date) : model
             missing_uploads = uploads
               .joins("LEFT JOIN #{table_name} ON #{table_name}.etag = #{model.table_name}.etag")
               .where("#{table_name}.etag IS NULL AND #{model.table_name}.etag IS NOT NULL")
diff --git a/spec/components/s3_inventory_spec.rb b/spec/components/s3_inventory_spec.rb
index d29a3029993..2919eb489f8 100644
--- a/spec/components/s3_inventory_spec.rb
+++ b/spec/components/s3_inventory_spec.rb
@@ -62,12 +62,12 @@ describe "S3Inventory" do
     freeze_time
 
     CSV.foreach(csv_filename, headers: false) do |row|
-      Fabricate(:upload, etag: row[S3Inventory::CSV_ETAG_INDEX], created_at: 2.days.ago)
+      Fabricate(:upload, etag: row[S3Inventory::CSV_ETAG_INDEX], updated_at: 2.days.ago)
     end
 
-    upload = Fabricate(:upload, etag: "ETag", created_at: 1.days.ago)
-    Fabricate(:upload, etag: "ETag2", created_at: Time.now)
-    Fabricate(:upload, created_at: 2.days.ago)
+    upload = Fabricate(:upload, etag: "ETag", updated_at: 1.days.ago)
+    Fabricate(:upload, etag: "ETag2", updated_at: Time.now)
+    Fabricate(:upload, updated_at: 2.days.ago)
 
     inventory.expects(:files).returns([{ key: "Key", filename: "#{csv_filename}.gz" }]).times(3)
     inventory.expects(:inventory_date).returns(Time.now)
@@ -100,7 +100,7 @@ describe "S3Inventory" do
     freeze_time
 
     CSV.foreach(csv_filename, headers: false) do |row|
-      Fabricate(:upload, url: File.join(Discourse.store.absolute_base_url, row[S3Inventory::CSV_KEY_INDEX]), etag: row[S3Inventory::CSV_ETAG_INDEX], created_at: 2.days.ago)
+      Fabricate(:upload, url: File.join(Discourse.store.absolute_base_url, row[S3Inventory::CSV_KEY_INDEX]), etag: row[S3Inventory::CSV_ETAG_INDEX], updated_at: 2.days.ago)
     end
 
     upload = Upload.last